Gas-burner.



No. 632,34l. Patented Sept. '5, I899. E. J. DASCHBACH.

6 AS B U R N E 8.

(Application filed May 8, 1897.1

3 Sheets-Sheet -I.

(No Model.)

nooMoooo WITNESSES $5 m 65M No. 632,34l. Patented Sept .-5, I899. E. .1. DASCHBACH.

GAS BURNER.

(Application filed May 8, 1897.}

3 Sheets-Sheet 2 (No Model.)

R O T N E V m WITNESSES m: MoRms Pawns c0, moron-mu. WASHINGTON, u. c.

UNTTED STATES PATENT EETCE.

EDlVARD J. DASOHBAOH, O F PITTSBURG, PENNSYLVANIA.

'GAS-BURNER.

SPECIFICATION forming part of Letters Patent No. 632,341, dated September 5, 1899. Application filed May 3, 1897., Serial No. 635,655. (No model.)

To (0Z5 whom it may concern:

Be it known that LEDWARD J. DASCHBACH, of Pittsburg, in the county of Allegheny and State of Pennsylvania, have invented a new and useful Improvement in Gas-Burners, of which the following is a full, clear, and exact description, reference being had to the accompanying drawings, forming part of this specification, in which- Figure 1 is a front elevation of a fireplace provided with my improved stove. Fig. 2 is a vertical section of the fireplace with a stove therein. Fig. 3 is a horizontal section of the same. Fig. 4: is a rear view, partially broken away, of the stove. Fig. 5 is a partial side elevation of a portion of the stove, illustrating the burner construction. Fig. 6 is a sectional detail of one of the burner-chambers. Fig. 7 is a sectional view of the gas-inlet to the mixer. Fig. 8 is a front elevation of a modified form of burner, and Fig. 9 is a sectional detail showing the method of supporting the stove where the supporting-lugs on the fire-front are lacking.

My invention relates to apparatus for burning gas; and it consists in the new and improved form of burner for use in fireplaces or stoves,in a newform of back plate by means of which a stove may be so located in a fireplace as to project but little into the room, in

a new form of gas inlet or valve for the mixer,

and generally in the construction andarrangement of the parts, as hereinafter more fully described, and set forth in the claims. In the drawings,2 representsa fireplace,and 3 a back plate for the stove, which is secured to lugs 4 at the sides of the fireplace by screws 5/ This back plate is formed with a deep recess, as shown, so as to allow the stove to set partially within the fireplace and utilize a portion of the space therein for air-heating by radiation. The stove also thus takes up less space in the room and is more ornamental in appearance.

6 is the mixer for the stove, this being of the usual Bunsen type, and 7 is the gas-inlet therefor, as shown in Fig. 7. This gas-inlet consists of a nozzle having a central hole 8 at its end and a series of holes 9, surrounding the same and terminating at the surface of the nozzle and, at different levels. The nozmitting the same in spray form Without increasing or diminishing the outlet-opening of a single hole. From the mixer leads a vertical pipe 13, closed at its upper end and provided with a series of forwardly-projecting short branches 14:, to which the separate chambers 15 of the burner are secured. These burners are preferably in the shape of rhomboids, as shown, with parallel front and rear faces, the front faces being provided with asbestos fiber or similar material. At the rear portion of the upper edge of each chamber are provided a series of small gas-outlets 16, and it is evident that the mixture of gas and air issuing from these outlets will impinge upon and burn in contact with the inclin ed face of the next box or chamberabove, thus insuring intimate contact between the jets of flame and the face of the burner. This is an important part of my invention, and I intend to cover this form of face whether the chambers are separate, as shown, or united to form one continuous vertical chamber having its face of zigzag shape similar to that shown, with gas-outlets at the base of each forwardly-inclined face.

The pipes 14 of the upper chambers are constricted more than the lower pipes, so as tov cause a better distribution of the gas over the burner.

At the lower corner of each chamber there is between it and the chamber next above an air-space 17, through which air will be drawn to support combustion of the gas-jets. This is important, because heretofore in the use of upright-face burners having seriesof gas-perforations the products of combustion from the lower jets deaden the combustion of the upper jets by depriving them of theiroxygen, and flickering of the flame and imperfect utilization of the gas result from this cause. By admitting air to the face of the burner through passages leading at intervals from the rear this evil is prevented and a much higher efficiency is secured in practice. I behave I am the first to thus provide the face of an upright burner with air-openings between rows of perforations and intend to claim the same broadly, no matter how the same are constituted. Specific claim is also made to the construction illustrated and to the upward direction of the air-passages.

The step arrangement of the face of the burner which I show and claim specifically is of advantage, because the jets arising from the several openings are thus shielded from the products of combustion of the jets below and have better opportunity to get a proper supply of oxygen and to burn without flickering.

The chambers 15 are preferably cast into form with core-openings at each end, and I preferably connect them by vertical strips or bars 17, which are secured thereto by screwplugs 18 engaging the screw-threaded coreopenings at the ends of the box. These strips or bars greatly strengthen and stiffen the burner. In the vertical pipe 13, at a point intermediate of its length, I provide a valve 19, having an operating'rod 20 extending to one side of the stove and by means of which the upper chambers may be shut off, if desired, thus confining the gas to the lower chambers of the burner.

Instead, of using a single central pipe 13 I may employ two branch pipes 13, extending upwardly at the ends of the chambers, as shown in Fig. 8, these pipes having small inlet-pipes 14! leading to opposite ends of the chambers. When this construction is used, I employ a valve 19 in one of the branch pipes, and in such branch the upper chambers only are connected by inlets thereto, the lower branches being joined to it by solid plugs, while in the other branch the upper chambers are joined by solid plugs and the lower by the inlets. In this way by closing the valve the upper chambers may be cut off.

Referring again to the construction where a single vertical pipe 13 is employed, I preferably secure this pipe by suitable clips 21 to a plate 22, which forms the front plate of an air-chamber 23, which separates the burnerchamber from a rear chamber 24:. To the upl per end of the plate 22 is secured a hood 25, which collects the products of combustion and directs them rearwardly into two fiues 2G, connecting the upper end of the burner-chamher to the rear chamber. The front portion of this hood is curved upwardly at the point a, and in this bent portion is contained a piece of tiling or other ornamental material 27. Over this hood extends an ornamental capplate or dome 28, secured to the hood and to the fire-front, as shown, this cap-plate being suitably perforated and forming-the top of the air-chamber. The top of the hood is covered bya plate 29, of asbestos or suitable nonconducting material, a small air-space being left between this material and the cap-plate. In the rear chamberI place a deflector 30, having a closed front and sides and an open top and bottom, the top extending nearly to the upper end of this rear chamber, so that asmall portion of the products may pass direct to the outlet-flue 31, the bulk of the products of combustion being compelled to pass downwardly at the sides of the deflector and up therethrough. Suitable spacing-pieces 32 are secured at the rear of the rear chamber and abut against the back plate 3.

The purpose of affording a small direct passage for the products of combustion from the fines 26 to the flue 31 is that at the lighting of the stove there maybe a direct draft,which will insure the passage of heat through the stove. This starts the flow, and as the stove and the chimney warm up the improved draft will draw the bulk of the products of com bustion in the indirect course shown by arrows in Fig. 4. All trouble in starting the stove to draw is thus overcome.

The sides of the air-chamber are formed by perforated plates 33, secured to the back plate and to forwardly-bent extensions 34 of the plate 22. At the inside of these bent portions of the plate 22 I secure curved plates 35, between which and the bent inner ends of the plates 33 I slip the curved cheek-pieces 36, which abut against the plate 22 at the rear of the burner, and are thus made easily removable for cleaning or polishing. Back of the cheek-pieces 36 and the plates 33 are airspaces, through which currents of air pass. The air entering the room from these spaces aids in heating the room and also keeps the metal plates cool and prevents them from tarnishing.

If the lugs 4: are not present upon the fireplace, I employ small plates or lugs 37, as shown in Fig. 9, these being secured by hookbolts 38 to the front of the fireplace and serve as rests for the back plate.

I preferably employ a wire screen or protector 39 in front of the burner, this being suspended by suitable hooks 40, depending from the side portions of the hood, as shown in Fig. 2.

41 is the fender, which is secured in posi tion by lugs 42.

The operation of the device is as follows: Gas being admitted to the mixer in the desired quantity by adjusting the sleeve of the gas-inlet, the mixture of gas and air passes upwardly through the vertical pipe or pipes and into the burner-chambers, whence it issues through the small holes at their tops and burns in contact with the asbestos fiber, heating the same to incandescence. The products of combustion pass into the hood and are directed back into the rear chamber, a small portion of them passing directly to the outlet-flue, while the bulk is caused to pass downwardly through this chamber and up through the deflector to the outlet-flue. The heat of these products is thus well extracted and given out to the air of the room by radiation from the chambers before they escape to the chimney.

The advantages of my invention result from the peculiar zigzag form of the burner, from the arrangement of the gas-inlet, from the arrangement of the deflectorin the rear chamber,fro1n the separate chambers of the burner, which admit the shutting ofi of a part thereof from the air-supply to the face of the burner, and from the simple and cheap construction and the highly ornamental appearance of the device.

Many changes in the form, construction, and relative arrangement of the parts may be made by the skilled mechanic without deextending fire-board,and a rear vertical chamber connected thereto, with an air-heating chamber between them, of a recessed back plate in which the rear chamber is set, the burner and air-heating chamber being arranged to project beyond the fireplace-front, whereby the air of the room rises vertically through the heating-chamber and into the room; substantially as described.

2. An upright-face gas-burner composed of transverse separate chambers with air-inlets between them, said chambers having upper gas-outlets and inclined front faces and being separately connected to a supply-pipe; substantially as described.

3. A gas-burner having a substantially vertical face of step or zigzag form,the upwardlyextending portions of the face being inclined forwardly and the jet-orifices of the burner being disposed near the bases of said inclined portions, in combination with air-inlets extending through the burner and terminating adjacent to the jet-orifices; substantially as described.

4. An upright-face gas-burner composed of transverse boxes or chambers in the form of rhomboids with air-inlets between them, each chamber having in its upper edge a series of jet-outlets; substantially as described.

5. An upright-face gas-burnerhavin g azigzag front face composed of forwardly-inclined portions offset by shoulders, jet-outlets in the therewith with an air-heating chamber between them, and a stationary deflector in the rear chamber arranged to allow a small portion of the products to pass directly to the outlet and force the remainder to pass around the deflector and through the chamber to the outlet; substantially as described.

7. The combination with a gas-inlet fitting, having a side outlet and terminating in a nozzle having a central outlet and channels leading from the side of said nozzle at different points along its length and terminating at the end of said nozzle around its central outlet, of a collar upon the gas-inlet fitting and provided with a recess with which the side outlet of the gasinlet fitting communicates, said collar adapted to be adjusted along the gas-inlet fitting so as to bring more or less of said channels into communication with the chamber formed by the recess of the collar and the gas-inlet fitting; substantially as described.

8. The combination with an upright face gas-burner, of a supporting-frame having a plate in the rear of the burner, said plate having integral forwardly-bent portions extending along the sides of the burner, clips secured to the inner faces of the bent portions, and detachable cheek-pieces having their edges held by the said clips; substantially as described.

9. The combination with an upright-face gas -burner, of a rear chamber connected therewith and having an outlet-flue, and a stationary deflector in the rear chamber arranged to allow a small portion of the products to pass directly to the outlet and force the remainder to pass around the deflector and through the chamber to the outlet; substantially as described.

In testimony whereof I have hereunto set my hand.

EDWARD J. DASOHBAGI-I.

Vitnesses:

F. E. GAITHER, H. M. CORWIN. 

